A viral exanthem rash is a rash over large areas of the body. Many types of viral illness can cause a rash. They include chickenpox, measles, coxsackievirus, and shingles. The rash may cover large areas of skin with red or purple spots or bumps, or it may be flat and the skin is smooth. The rash may itch or hurt and may feel warm. The bumps may form small blisters filled with fluid.
Because a virus causes the rash, you may also have a fever, headache, runny nose, diarrhea, vomiting, or feel unwell in other ways. The virus that caused the rash may be spread to other people. Take care not to share personal items until your rash is gone and you have recovered from the virus.
Home care
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Don’t scratch the rash. This can cause it to get infected.
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Wash your skin gently every day with mild soap and cool water. Pat dry.
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Ease itching and pain with calamine lotion or with cool compresses.
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Don’t apply other lotion, cream, or ointment unless directed.
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Soothe your skin by taking a bath in cool water with baking soda or colloidal oatmeal.
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Take medicines for itching, fever, or other symptoms exactly as directed.
Follow-up care
Follow up with your health care provider as advised.
When to get medical care
Call 911 if you have trouble breathing or swallowing, have seizures, or if your eyes or lips swell up.
Call your health care provider or seek medical care right away if:
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You have chills.
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You have a fever of 100.4°F (38.0°C) or higher, or as advised by your provider.
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Severe headache with stiff neck
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You feel dizzy, nauseous, or confused.
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The rash spreads quickly.
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The rash spreads on your face near your eyes, lips, mouth, or genital area.
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You have swollen and painful lymph nodes in the armpit, neck, or groin.
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Pus or bad-smelling fluid is coming from the rash.
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The rash looks red, purple, or brown.
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The rash is uncomfortable and interferes with your sleep or daily activities.
